If your roommate is exhibiting less-than-livable habits, don't just complain -- write them a citation.

Although they're geared toward college roomies, these Roommate Citations from Neatorama work in any shared-space scenario. They cover lighthearted infractions, such as lousy taste in music and leaving an empty toilet-paper roll, plus more serious violations like poor hygiene and a lack of respect for personal property.

The bottom of every sheet makes one final proclamation -- "I'm not your Mommy" -- just in case the overall message was unclear.

The Roommate Citations are $3.95 for a pad of 50, but if you need that many, it might be time to just cut your losses and get your own place.